Home / 23,144.76-31,948.10-15,189.48

Finding the Fourth Proportional to 23,144.76, 31,948.10 and 15,189.48

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Solution

The fourth proportional to 23,144.76, 31,948.10 and 15,189.48 is: 20,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,144.76 : 31,948.10 = 15,189.48 : x
  2. Step 2: Convert to fraction form
    23,144.76/31,948.10 = 15,189.48/x
  3. Step 3: Cross multiply
    23,144.76x = 31,948.10 × 15,189.48
  4. Step 4: Simplify right side
    23,144.76x = 485,275,025.99
  5. Step 5: Solve for x
    x = 485,275,025.99/23,144.76
  6. Step 6: Final answer
    x = 20,966.95

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.